Trivia

Sona's classic splash art from the 3.02 patch was drawn by Shilin Huang.

The name "Sona" is derived from the Latin prefix denoting sound, "son-", attached to the Latin suffix for feminine objects, "a".

Sona's name in Hindi means "gold".

Sona's name and abilities are closely related to "sonar", which is the technique that propagates sound to navigate, detects and also communicate. Sona's abilities greatly alludes to the 'active sonar' technology, which she emits pulses(in her case, waves) of sound.

A "maven" is someone highly skilled in a field who wishes to teach others in said field.

The name of Sona's weapon, the "Etwahl", is pronounced the same as the French word "étoile", which means "star".

The Etwahl is likely a reference to the guzheng, a Chinese string instrument.

"Etwahl" is also an anagram for "wealth", symbolizing her adoptive mother's only notable quality, as well as a reminder that it's Sona's source of power.

A power chord is a type of chord that consists of a doubled root note and the fifth. It's a key element of many styles of rock music.

Sona is a mute, yet can talk to the Summoner. She claims that only "you" can hear her and says the phrase "From my mind, to yours." This indicates the mental connection between a Summoner and their Champion, which is a recurring feature in League Judgements.

Her appearance and the general musical theme bears certain similarity to the popular Vocaloid Hatsune Miku, just as how Ezreal looks somewhat like Kagamine Len.

Each of Sona's abilities have varying ambient music, playing whenever its aura is active.

When Hymn of Valor is the active aura, the League of Legends theme can be heard from the Etwahl.

Hymn is a type of song, usually alluded to religiousness. In Greek, it means "song of praises", practically equivalent to the Islamic 'Dhikr'(chant of remembrance and/or praises).

Sona's ultimate, Crescendo, actually triggers the dance emote in addition to the stun. Crescendo means "gradually becoming louder" in Italian, it refers to the amplification of volume instead.

In the U.R.F game mode (available in April 2014), Sona was deemed overpowered/obnoxious, and was ultimately disabled in non-custom games.

Quotes

The tune of Sona's taunt has the same tune of the announcer's "Finish him!" from the Mortal Kombat series.

"Allegrissimo" means to play the music faster, in a very lively or cheerful way, from Italian.

"Brioso, Brioso!" means lively, merry, proud and high spirited, from both Italian and Spanish.

"Adagio" means gently, slowly or simply more graceful and leisurely in Italian.

This is the first skin to be fully musicalized, down to Sona's melodic voice-over to match her Disk Jockey music: Kinetic, Concussive and Ethereal.

Sona has over 3 hours of sound effects, music and voice-over, making her the No.1 champion in terms sound files. All can be heard through this link.

As with the standard soundtrack, Sona's three soundtracks build up as the game plays-out - interacting upon using her spells for the first time. Also by changing stances and using her spells, 3 hours of sound files give her a large amount of possible music combination, making the player "the DJ for DJ Sona" with every game.

Upon using her ultimate the first time after she puts a point into it, the base music (with all layers applied) will change to sound fuller and more "epic." This applies to all her forms.

DJ Sona has three forms that you can toggle through by typing “/toggle” or pressing CTRL+5. Each form creates a unique musical experience that only she and her teammates can hear.

Changing her form has a 0.5 second cast time. Casting the transition, dealing damage, taking damage, or getting crowd controlled will invoke a 2 second internal cooldown for transitioning again and the cooldown starts as soon as the toggle is activated.

You can rebind the toggle in the Options menu. Options > Hotkeys > Communication > Toggle (second row from the bottom)

Sona's allies (but not her enemies) can opt-in to listening to Sona's music instead of the standard in-game soundtrack from the scoreboard. Sona has complete control of the soundtrack. Her allies do not get to choose between Kinetic, Concussive or Ethereal.